Step 1: Understand the problem. You have a person standing 15 meters away from a tree.
Step 2: Know that the angle of elevation to the top of the tree is 45 degrees.
Step 3: Remember that the tangent (tan) of an angle in a right triangle is the ratio of the opposite side (height of the tree) to the adjacent side (distance from the tree).
Step 4: For an angle of 45 degrees, the value of tan(45 degrees) is 1.
Step 5: Use the formula: Height = distance * tan(angle). Here, distance is 15 meters and tan(45 degrees) is 1.
